Strange VE pump issue!

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DoubleH

New Member
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2
Location
Beds
Good morning all

New member but long time lurker, usually the info I need doesn't require a thread but this one does!

I have a 200tdi 90, which when the boost pin and diaphragm is installed correctly (with the spring) the engine won't rev whatsoever.

When I bought the 90 the spring was missing, so the pin is in the down position all the time. I installed the spring as per YouTube video (it was in the cubby box!) and then the no revving issue started. It just doesn't rev whatsoever and will just idle with the spring correctly installed.

I replaced the pin, spring, and new OE diaphragm and the issue remains. Currently having to drive it without the spring installed but I believe this means it's over fueling at low revs as a result. It does seemingly drive fine but I just wondered if anyone had any tips!

Many thanks
 
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